157045874 has 4 divisors (see below), whose sum is σ = 235568814. Its totient is φ = 78522936.

The previous prime is 157045873. The next prime is 157045883. The reversal of 157045874 is 478540751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478540751 = 13 ⋅36810827.

It can be written as a sum of positive squares in only one way, i.e., 119137225 + 37908649 = 10915^2 + 6157^2 .

It is not an unprimeable number, because it can be changed into a prime (157045873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39261467 + ... + 39261470.

Almost surely, 2^157045874 is an apocalyptic number.

157045874 is a deficient number, since it is larger than the sum of its proper divisors (78522940).

157045874 is an equidigital number, since it uses as much as digits as its factorization.

157045874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78522939.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 157045874 is about 12531.7945243289. The cubic root of 157045874 is about 539.5216087783.

The spelling of 157045874 in words is "one hundred fifty-seven million, forty-five thousand, eight hundred seventy-four".